bfd/cpu-i386.c

   1 /* BFD support for the Intel 386 architecture.
   2    Copyright 1992, 1994, 1995, 1996, 1998, 2000, 2001, 2002, 2004, 2005,
   3    2007, 2009, 2010, 2011
   4    Free Software Foundation, Inc.
   5
   6    This file is part of BFD, the Binary File Descriptor library.
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program; if not, write to the Free Software
  20    Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21    MA 02110-1301, USA.  */
  22
  23 #include "sysdep.h"
  24 #include "bfd.h"
  25 #include "libbfd.h"
  26
  27 static const bfd_arch_info_type *
  28 bfd_i386_compatible (const bfd_arch_info_type *a,
  29                      const bfd_arch_info_type *b)
  30 {
  31   const bfd_arch_info_type *compat = bfd_default_compatible (a, b);
  32
  33   /* Don't allow mixing x64_32 with x86_64.  */
  34   if (compat
  35       && (a->mach & bfd_mach_x64_32) != (b->mach & bfd_mach_x64_32))
  36     compat = NULL;
  37
  38   return compat;
  39 }
  40
  41 static const bfd_arch_info_type bfd_x64_32_arch_intel_syntax =
  42 {
  43   64, /* 64 bits in a word */
  44   64, /* 64 bits in an address */
  45   8,  /* 8 bits in a byte */
  46   bfd_arch_i386,
  47   bfd_mach_x64_32_intel_syntax,
  48   "i386:intel",
  49   "i386:x64-32:intel",
  50   3,
  51   FALSE,
  52   bfd_i386_compatible,
  53   bfd_default_scan,
  54   0
  55 };
  56
  57 static const bfd_arch_info_type bfd_x86_64_arch_intel_syntax =
  58 {
  59   64, /* 64 bits in a word */
  60   64, /* 64 bits in an address */
  61   8,  /* 8 bits in a byte */
  62   bfd_arch_i386,
  63   bfd_mach_x86_64_intel_syntax,
  64   "i386:intel",
  65   "i386:x86-64:intel",
  66   3,
  67   FALSE,
  68   bfd_i386_compatible,
  69   bfd_default_scan,
  70   &bfd_x64_32_arch_intel_syntax,
  71 };
  72
  73 static const bfd_arch_info_type bfd_i386_arch_intel_syntax =
  74 {
  75   32,   /* 32 bits in a word */
  76   32,   /* 32 bits in an address */
  77   8,    /* 8 bits in a byte */
  78   bfd_arch_i386,
  79   bfd_mach_i386_i386_intel_syntax,
  80   "i386:intel",
  81   "i386:intel",
  82   3,
  83   TRUE,
  84   bfd_i386_compatible,
  85   bfd_default_scan,
  86   &bfd_x86_64_arch_intel_syntax
  87 };
  88
  89 static const bfd_arch_info_type i8086_arch =
  90 {
  91   32,   /* 32 bits in a word */
  92   32,   /* 32 bits in an address (well, not really) */
  93   8,    /* 8 bits in a byte */
  94   bfd_arch_i386,
  95   bfd_mach_i386_i8086,
  96   "i8086",
  97   "i8086",
  98   3,
  99   FALSE,
 100   bfd_i386_compatible,
 101   bfd_default_scan,
 102   &bfd_i386_arch_intel_syntax
 103 };
 104
 105 static const bfd_arch_info_type bfd_x64_32_arch =
 106 {
 107   64, /* 64 bits in a word */
 108   64, /* 64 bits in an address */
 109   8,  /* 8 bits in a byte */
 110   bfd_arch_i386,
 111   bfd_mach_x64_32,
 112   "i386",
 113   "i386:x64-32",
 114   3,
 115   FALSE,
 116   bfd_i386_compatible,
 117   bfd_default_scan,
 118   &i8086_arch
 119 };
 120
 121 static const bfd_arch_info_type bfd_x86_64_arch =
 122 {
 123   64, /* 64 bits in a word */
 124   64, /* 64 bits in an address */
 125   8,  /* 8 bits in a byte */
 126   bfd_arch_i386,
 127   bfd_mach_x86_64,
 128   "i386",
 129   "i386:x86-64",
 130   3,
 131   FALSE,
 132   bfd_i386_compatible,
 133   bfd_default_scan,
 134   &bfd_x64_32_arch
 135 };
 136
 137 const bfd_arch_info_type bfd_i386_arch =
 138 {
 139   32,   /* 32 bits in a word */
 140   32,   /* 32 bits in an address */
 141   8,    /* 8 bits in a byte */
 142   bfd_arch_i386,
 143   bfd_mach_i386_i386,
 144   "i386",
 145   "i386",
 146   3,
 147   TRUE,
 148   bfd_i386_compatible,
 149   bfd_default_scan,
 150   &bfd_x86_64_arch
 151 };